Noiseless Dual Coil Acoustic Guitar Soundhole Pickup Magnetic with Active Power Jack<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Noiseless soundhole pickup Suitable for size: 39， 40， 41 and 42 inches Acoustic Guitar </span></li><li><span class="a-list-item"> On the left clip-on fixing screw lift， grip the sound hole of the panel pickups volume adjustment; pickups tone adjustment </span></li><li><span class="a-list-item"> Lift the left clip-screw fixation， caught the sound hole of the panel </span></li><li><span class="a-list-item"> Cylinder pickups points， the biggest advantage is with the function of adjustment </span></li><li><span class="a-list-item"> Dual adjust the sound hole pickups， pickups better results </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41PsYhw1qJL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41mhnKHPjQL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41QKXQTOL1L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/513JaC3HbxL.jpg" noproxy>